help does anyone have the book of Chemistry matter and change. AND CAN YOU TAKE PICTURE OF CHAPTER 19 PROBLEM 40 THOUGH 48 AND 52-57​

A simple chemical reaction with a single substrate shows a linear relationship between the rate of formation of product and the concentration of substrate, as shown below: ... The relationship between rate of reaction and concentration of substrate depends on the affinity of the enzyme for its substrate.

The ratio that represents the quantity of solute proportionate to the quantity of solvent or solution is called concentration.

Concentration is an important aspect of chemistry as it gives the estimation of provided solute combined with another solvent or solution.

A measure of any substance done by molarity, mole fraction, per cent, normality or molality is called concentration. The amount of the solute will be expressed in the terms of the solvent or solution.

The concentration can be expressed in volume (L or mL), molarity (M), N, ppm, etc. The units are not fixed though it is an estimation of the solute from the solvent or the solution.

Therefore, option A is correct.

Learn more about concentration here:

https://brainly.com/question/911327

A - ratio that describes the amount of solute divided by the amount of solvent or solution

Answer:

See below

Explanation:

ΔQ = m c T        ΔQ = heat required(J)    m = mass (g)    T = C° temp change

                             c = heat capacity in J/g-C

Answer:

4 hours,19 minutes,60 seconda

Explanation:

just add everything up

Given data:H2O vapor content: 13 gramsH2O vapor capacity: 52 grams at 25 degrees Celsius 13 grams at 10∘C52 grams at 30∘CFormula used to find the dew point:$$\dfrac{13}{52}=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$$$\frac{1}{4}=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$

Where A is the constantDew Point:It is the temperature at which air becomes saturated with water vapor when the temperature drops to a point where dew, frost or ice forms. To solve this question, substitute the given data into the formula.$$13/52=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$$$13(17.27-A)=3\pi A(ln100)$$By simplifying the above expression, we get$$A^2-17.27A+64.78=0$$Using the quadratic formula, we get$$A=9.9,7.4$$

The dew point is 7.4 since it is less than 10°C.More than 100:The term "More than 100" has not been used in the question provided.

To know more about temperature  visit:

https://brainly.com/question/7510619

#SPJ11

Answer:

Depends on what are you refering to

Explanation:

So depending on what you are looking for (your question is quite vauge)

there are 5 atoms of the comopound (K2CO3)

within that compound, there are 2 atoms of Potassium and 1 atom of Carbonate. Within Carbonate there are 4 atoms (1 carbon and 3 oxygens)

so answers may be

5, 15, or 25.

I hope this helps.

Answer:

C

Explanation:

As air is pumped out of the jar, the water begins to boil because "the air pressure in the jar has been lowered until it is equal to the vapor pressure of the water."

The force is applied perpendicular to an object's surface per unit area across which that force is spread is known as pressure. The pressure gauge in relation to the higher pressures would be known as gauge pressure. Pressure is measured in a variety of ways.

Equilibrium or vapor pressure The pressure exerted by a vapor in thermodynamic equilibrium including its condensed phases at a particular temperature in a closed system is known as vapor pressure.

The temperature where the vapor pressure of liquid water matches the ambient pressure is known as the boiling point of water. Because we know that pressure,  temperature, as well as temperature, are directly related, water with a high boiling point will have a high boiling point, whereas water with a low boiling point will have a low boiling point.

When we maintain a vacuum (pressure lower than atmospheric pressure), water starts to boil at temperatures below 100 degrees Celsius.

Hence the correct answer will be option 3

To know more about air pressure here

https://brainly.com/question/25699778.

#SPJ2

Answer:

16.   CsCl  =  Cs¹⁺ and Cl⁻¹

17.  CaF₂  =  Ca²⁺ and F⁻¹

18.   FeO  =  Fe²⁺ and O⁻²

19. Al₂O₃  =  Al³⁺ and O⁻²

Assuming all orbitals are in the same energy level, the orbital with the lowest energy is the s orbital.

In the context of the electronic structure of atoms, orbitals are grouped into different energy levels, with each energy level containing one or more sublevels. The energy levels are labeled using the principal quantum number (n), with higher values of n corresponding to higher energy levels.

Within a given energy level, the s orbital is always the orbital with the lowest energy. This is because the s orbital has a spherical shape and is located at the center of the atom. It is shielded from the nuclear charge by the other electrons in the atom, resulting in a lower energy compared to other orbitals within the same energy level.

The p orbitals, on the other hand, have slightly higher energy than the s orbital within the same energy level. The p orbitals are dum bbell-shaped and are oriented along the x, y, and z axes. They have a higher energy due to their orientation and their closer proximity to the nucleus.

Similarly, the d and f orbitals, which exist in higher energy levels, have even higher energies compared to the s and p orbitals within their respective energy levels.

Therefore, if all the orbitals are in the same energy level, the s orbital will have the lowest energy among them.

For more such questions on energy level visit:

https://brainly.com/question/20561440

#SPJ8

The balanced chemical equation between pottasium and chlorine is as follows: 2K + Cl₂ → 2KCl. It is a combination reaction.

A chemical reaction is a process, typically involving the breaking or making of interatomic bonds, in which one or more substances are changed into others.

According to this question, a chemical reaction occurs between potassium metal and chlorine gas to form pottasium chloride as follows:

2K + Cl₂ → 2KCl

The chemical reaction is a combination reaction because it involves the combination of two elements to form a compound.

Learn more about chemical reaction at: https://brainly.com/question/22817140

#SPJ1

Answer: When you add an electron to zinc, it needs some extra energy. This is because zinc atoms naturally don't like having an extra electron. The extra electron and the electrons already present in zinc repel each other due to their negative charges. So, you have to give some energy to the zinc atom to overcome this repulsion and make it accept the additional electron. Basically, energy input is required to make zinc accept an extra electron because the electron doesn't fit easily and needs some force to be added.

Explanation: hope this helps

A balanced chemical equation is a representation of a chemical reaction using chemical formulas and coefficients to ensure that the number of atoms of each element is the same on both sides of the equation.The balanced chemical equation for the formation of nitrogen dioxide (NO2) from oxygen gas (O2) is

2 NO + O2 ⟶ 2 NO2. The stoichiometric coefficients in the balanced equation indicate that 1 mole of O2 reacts with 2 moles of NO to produce 2 moles of NO2.

Therefore, we can use the stoichiometry of the balanced equation to determine the amount of O2 required to produce 4.67 moles of NO2.

To form 4.67 moles of NO2, we need 2 × 4.67 moles of NO and 1 × 4.67 moles of O2 (using the stoichiometric coefficients from the balanced equation).

Therefore, the number of moles of O2 that must react to form 4.67 moles of NO2 is:4.67 moles of O2.

Learn more about stoichiometry here ;

https://brainly.com/question/28780091

#SPJ11

Explanation:

We are given: concentration of a weak acid = 10^-4 M

Answer:

The pH of a weak acid is 4.

The energy can be identified by their features, characteristics and impacts on the surrounding environment.

If the energy release heat then we can say that it is a thermal energy because it warms the environment whereas if the energy produce light then it is called radiant energy.

If the energy is released from splitting atoms or fusion of atoms so we can say that it is a nuclear energy. If the energy is released from breaking of bonds of atoms and molecules, so it is Chemical energy.

So we can conclude that the energy can be identified by their features, characteristics and impacts on the surrounding environment.

Learn more about energy here: https://brainly.com/question/13881533

#SPJ1

Answer: 12.21

Explanation:

It is well known that the sum of pH + pOH = 14.

To get the pOH of the solution, we subtract 1.79 from 14.

pH + pOH = 14

pOH = 14 - 1.79 = 12.21

pOH = 12.21

Hydration is a specific example of the phenomenon known generally as a. solvation

The act of hydrating involves combining or dissolving an object in water. It is a particular instance of the more general phenomena known as solvation, which is the process by which solvent molecules surround and scatter a solute to create a homogeneous solution. However, hydration explicitly refers to solvation with water as the solvent.

Solvation may also happen with solvents other than water. Solvation is the process through which a solute and solvent interact to stabilise a solute species. Due to its impact on the solubility, reactivity, and behaviour of compounds in solution, solvation is a crucial mechanism in many chemical and biological processes.

Read more about solvation on:

https://brainly.com/question/530845

#SPJ4

Reflecting telescopes are preferred for scientific research because they are better suited for gathering large amounts of light and producing high-quality images. However, refracting telescopes are still popular for amateur astronomers and for viewing objects on Earth.

Reflecting telescopes are different from refracting telescopes because reflecting telescopes use mirrors, whereas refracting telescopes use lenses. The reflecting telescope was invented in 1668 by Sir Isaac Newton, and it has since become one of the most popular types of telescopes.
Reflecting telescopes use a mirror to gather and focus light, while refracting telescopes use a lens to do the same thing. Reflecting telescopes can be made much larger than refracting telescopes because it is easier to make large mirrors than it is to make large lenses. The mirror in a reflecting telescope is placed at the back of the telescope, and it gathers and reflects light back to a secondary mirror, which then reflects the light to the eyepiece. The eyepiece is where the observer looks through the telescope.In contrast, the lens in a refracting telescope is placed at the front of the telescope, and it gathers and bends light as it passes through. The lens focuses the light onto an eyepiece at the back of the telescope. Refracting telescopes are generally smaller than reflecting telescopes because of the difficulty of making large lenses.
Another difference between reflecting and refracting telescopes is the way they are constructed. Reflecting telescopes have a simple tube that houses the mirrors and eyepiece, while refracting telescopes have a more complex design with a long tube that contains the lens and eyepiece.

for such more questions on telescopes

https://brainly.com/question/28359353

#SPJ8

Answer:

Sick Core corona +iep =Qurintine

The student should dissolve 11.76 g of pyridinium chloride (C5H5NHCl) in the 125 mL of pyridine solution to prepare a buffer with a pH of 5.25.

To prepare a buffer solution using pyridine, we need to add its conjugate acid, pyridinium ion (C5H5NH+). Pyridine has a pKa of 5.25, so we want to choose a pH close to this value to make the buffer most effective.

To prepare a buffer solution with a pH of 5.25, we can use the Henderson-Hasselbalch equation:

pH = pKa + log([base]/[acid])

where [base] and [acid] are the concentrations of the weak base and its conjugate acid, respectively.

Rearranging the equation gives us:

[base]/[acid] = 10^(pH - pKa)

Substituting the values for pyridine pKa and pH gives:

[base]/[acid] = 10^(5.25 - 5.25) = 1

This means we need to add equal amounts of pyridine and pyridinium ion to prepare a buffer with a pH of 5.25.

The molar mass of pyridine is 79.10 g/mol, so the number of moles in 125 mL of a 1 M pyridine solution is:

125 mL x 1 L/1000 mL x 1 mol/L = 0.125 mol

To prepare a buffer with equal amounts of pyridine and pyridinium ion, we need to add 0.125 mol of pyridinium ion.

The molar mass of pyridinium ion is 94.11 g/mol, so the mass of pyridinium ion we need to add is:

0.125 mol x 94.11 g/mol = 11.76 g

For more such questions on pyridinium

https://brainly.com/question/14727217

#SPJ11

28.5 J is the amount of energy transferred to the coin.

The specific heat capacity is defined as the quantity of heat (J) absorbed per unit mass (kg) of the material when its temperature increases by 1 K (or 1 °C), and its units are J/(kg K) or J/(kg °C).

Energy is calculated mCΔT formula  where,

m(mass)= 6.30  grams

C(specific heat capacity)= 0.377 j/g

ΔT(change in temperature)= 32.0°C- 20°C= 12 °C

Energy is, therefore:

Q = mCΔT

Q= 6.30 g  x 0.377  j/g /°C x   12 °C

Q= 28.5 J

Hence, 28.5 J is the amount of energy transferred to the coin.

Learn more about the specific heat capacity here:

https://brainly.com/question/1747943

#SPJ1

Answer:

28.5 J is which what is the amount of energy transferred or given to the coin.

Explanation:

Have a great rest of your day
The one and only
Mr. Universe

Answer:  V1/V2 = 0.357,

V2 = (V1/0.357) or 28.0*V2

Explanation:  Use the combined gas law:  P1V1/T1 = P2V2/T2  We want to find V1/2 (or V2/V1).  Rearrange:

V1/V2 = (P2/P1)(T1/T2)

The units all cancel.  Temerature is constant, so (T1/T2) = 1.

V1/V2 = (125/350)*(1)

V1/V2 = 0.357

Answer:

The answer is

Explanation:

The density of a substance can be found by using the formula

\(density = \frac{mass}{volume} \\ \)

From the question

mass of calcium = 250 g

volume = final volume of water - initial volume of water

volume = 196 - 35 = 161 mL

It's density is

\(density = \frac{250}{161} \\ = 1.552795031...\)

We have the final answer as

Hope this helps you

The molecule is polar if the configuration is asymmetrical.

A physical characteristic of compounds called polarity links other characteristics including solubility, melting and boiling points, and intermolecular interactions.

Molecules that have both positive and negative charge areas are said to be polar. A polar substance is water, for instance. Due to the sort of bonds it has and the way it is shaped, the molecule has a slight positive charge at the hydrogen end and a slight negative charge at the other end (the oxygen end).

We may tell that a bond is polar if the difference in electronegativity between its constituent atoms is between 0.5 and 2.0. If the atom is a diatomic, a polar molecule must follow.

To learn more about molecular polarity refer to:

https://brainly.com/question/1433127

#SPJ1

The intermolecular force that is common to both is the dipole forces

b) The lesser molecular mass of \(SeOF_{2}\) made it to have a lesser boiling point.

We know that apart from the forces that holds the atoms together in a molecule, there is yet another force that holds the molecules together in a particular state of matter. Let us recall that matter is anything that has mass and occupy space.

If we look at the two compounds that we have, it is clear that the commonality between the two compounds is that the both of them are held together by the dipole forces because the molecules are composed of atoms that are polar.

On the other hand, there is a dispersion force that is found in every molecule. The magnitude of the dispersion forces depends on the molecular mas of the molecule. Given that \(SeOCl_{2}\) has a greater molecular mass than \(SeOF_{2}\), it would necessarily have  grater boiling point than the later.

Learn more about intermolecular forces:https://brainly.com/question/9007693

#SPJ1

The cultures of prehistoric humans are primarily known through the excavation of stone tools and other durable artifacts, such as the Oldowan and Acheulian tool traditions.

Stone tools and imperishable artifacts serve as key archaeological evidence for understanding prehistoric cultures. Through meticulous excavation and analysis, archaeologists have been able to piece together the lifestyles, technological advancements, and social behaviors of early human societies. The term "paleolithic" refers to the Old Stone Age, a time when humans relied on stone tools as their primary implements.

The Oldowan tool tradition is considered the earliest stone tool industry, dating back around 2.6 million years ago. It is characterized by simple tools, such as choppers and scrapers, which were crafted by flaking off pieces from larger stones. These tools were primarily used for basic activities like butchering and processing animal carcasses.

Later, the Acheulian tool tradition emerged around 1.76 million years ago, representing an advancement in stone tool technology. Acheulian tools, such as handaxes and cleavers, were more refined and standardized, showcasing an increased level of sophistication in tool-making techniques. These tools served a wide range of purposes, including hunting, woodworking, and shaping raw materials.

By studying the Oldowan and Acheulian tool traditions, researchers gain valuable insights into the cognitive abilities, cultural development, and technological progress of early humans. The examination of these artifacts provides evidence of their adaptability, problem-solving skills, and the gradual refinement of their tool-making techniques over time.

Learn more about prehistoric humans

brainly.com/question/28301954

#SPJ11

The relationship between an hydrogen atom's energy levels, sublevels and atomic orbitals lies in the fact that hydrogen atom has a shell with energy level of 1 and the energy sublevels are similar as there's only one and have the same energy, and lastly, only one atomic orbital exists in a hydrogen atom

Ultimately, the hydrogen atom has only one electron In the energy level 1, sublevels with equal energy as there are no sublevels in the energy level 1 and only the 1s atomic orbital.

Read more:

https://brainly.com/question/10108003

The quantity of refrigerant in a system is less critical when the system has increased operating pressures.

A low coolant level can cause the engine to overheat. This can cause the compressor not to start or the circuit breaker to trip prematurely. If left unchecked, the engine will eventually burn out and completely stall. Refrigerants with a low critical temperature have a large decrease in cooling performance.

The critical temperature of the refrigerant should be higher than the condensing temperature to obtain greater heat transfer at a constant temperature. When the air conditioner runs low on refrigerant, it loses its ability to transfer heat from within. This means that the air that's being blown into your AC coil isn't cooling properly, so your vents will start circulating warm air throughout your home.

Learn more about Refrigerant here:-https://brainly.com/question/26395073

#SPJ9

According to the given question  the density of Iron is 7.84 g/mL

Given data:

Mass of Iron = 9.8 g

Initial volume of water = 29.30 mL

Final volume of Iron and water = 30.55 mL

We can use the formula of density, which is:

Density = mass/volume

To calculate the density of iron, we need to first calculate the volume of Iron. We can do this using the equation of the total volume of Iron and water.

Volume of Iron = Final Volume - Initial Volume of water

Volume of Iron = 30.55 mL - 29.30 mL

Volume of Iron = 1.25 mL

Now, we can substitute the values of mass and volume into the formula of density:

Density of Iron = mass/volume

Density of Iron = 9.8 g / 1.25 mL

Density of Iron = 7.84 g/mL

Thus, the density of Iron is 7.84 g/mL (rounded off to two significant figures).

To know more about density visit :

https://brainly.com/question/29775886

#SPJ11

Explanation:

Protons, Neutrons and Electrons are the three primary subatomic particles that form an atom.

Protons and Neutrons are large particles and are densely compacted into the nucleus of the atom. Protons are electrochemically positive in charge and the Neutrons are electrochemically neutral in charge.

Together the protons and Neutrons make up the mass of the atom.

Electrons are electrochemically negatively charged particles that move random around the nucleus. They have a relatively small mass compared to Protons and Neutrons. They are found in electron clouds that surround the nucleus and their movement and properties provide for the bonding characteristics of each atom.